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理性的政府在制订农业政策时,会考虑到政策带给生产者、消费者、以及政府自身(代表纳税人的利益)带来的福利的影响。政府在与利益群体的博弈过程中,得到了有权重的国家偏好函数(PPF),这个有权重的偏好函数反映了政府对不同利益群体的福利偏好。本文用显示性偏好的方法得到了国家偏好函数中的权重,将政策偏好显性化,并运用了大豆市场上的历史资料印证了政府偏好函数所反映的政策偏好,政府在大豆市场上的政策基本上是倾向于生产者的。
When formulating agricultural policies, rational governments take into account the effects of policies on producers, consumers, and the government itself (on behalf of taxpayers). In the process of the game with the interest groups, the government obtains the weighted National Preference Function (PPF). This weighted preference function reflects the government’s preference for the welfare of different interest groups. In this paper, we obtain the weight of the national preference function by explicit preference method and make explicit the policy preferences. The historical data on the soybean market confirm the preference of the government, the government’s policy in the soybean market Basically, it is producer.